LA School Profiling Report

Dataset statistics

Number of variables	27
Number of observations	418
Missing cells	1298
Missing cells (%)	11.5%
Duplicate rows	19
Duplicate rows (%)	4.5%
Total size in memory	763.2 KiB
Average record size in memory	1.8 KiB

Variable types

Numeric	7
Categorical	18
Unsupported	2

Alerts

`user_id` has constant value ""	Constant
`type` has constant value ""	Constant
`has_glang_contrib` has constant value ""	Constant
Dataset has 19 (4.5%) duplicate rows	Duplicates
`cefr_rate` is highly overall correlated with `completed_at` and 11 other fields	High correlation
`completed_at` is highly overall correlated with `cefr_rate` and 17 other fields	High correlation
`created_at` is highly overall correlated with `cefr_rate` and 17 other fields	High correlation
`engine` is highly overall correlated with `cefr_rate` and 13 other fields	High correlation
`event_id` is highly overall correlated with `completed_at` and 11 other fields	High correlation
`fail` is highly overall correlated with `cefr_rate` and 17 other fields	High correlation
`group_id` is highly overall correlated with `completed_at` and 12 other fields	High correlation
`history` is highly overall correlated with `cefr_rate` and 17 other fields	High correlation
`id` is highly overall correlated with `completed_at` and 11 other fields	High correlation
`items` is highly overall correlated with `cefr_rate` and 17 other fields	High correlation
`lesson_id` is highly overall correlated with `completed_at` and 11 other fields	High correlation
`load` is highly overall correlated with `cefr_rate` and 8 other fields	High correlation
`pass` is highly overall correlated with `cefr_rate` and 18 other fields	High correlation
`points` is highly overall correlated with `history` and 8 other fields	High correlation
`queues` is highly overall correlated with `cefr_rate` and 19 other fields	High correlation
`round` is highly overall correlated with `completed_at` and 13 other fields	High correlation
`rule` is highly overall correlated with `completed_at` and 11 other fields	High correlation
`score` is highly overall correlated with `completed_at` and 10 other fields	High correlation
`status` is highly overall correlated with `cefr_rate` and 13 other fields	High correlation
`time_spent` is highly overall correlated with `history` and 4 other fields	High correlation
`total_time` is highly overall correlated with `cefr_rate` and 20 other fields	High correlation
`updated_at` is highly overall correlated with `cefr_rate` and 20 other fields	High correlation
`score` is highly imbalanced (62.7%)	Imbalance
`pass` has 66 (15.8%) missing values	Missing
`fail` has 132 (31.6%) missing values	Missing
`completed_at` has 242 (57.9%) missing values	Missing
`total_time` has 22 (5.3%) missing values	Missing
`class_test_id` has 418 (100.0%) missing values	Missing
`attempted_sets` has 418 (100.0%) missing values	Missing
`items` is uniformly distributed	Uniform
`pass` is uniformly distributed	Uniform
`fail` is uniformly distributed	Uniform
`created_at` is uniformly distributed	Uniform
`updated_at` is uniformly distributed	Uniform
`completed_at` is uniformly distributed	Uniform
`total_time` is uniformly distributed	Uniform
`queues` is uniformly distributed	Uniform
`class_test_id` is an unsupported type, check if it needs cleaning or further analysis	Unsupported
`attempted_sets` is an unsupported type, check if it needs cleaning or further analysis	Unsupported
`load` has 22 (5.3%) zeros	Zeros
`cefr_rate` has 66 (15.8%) zeros	Zeros
`points` has 44 (10.5%) zeros	Zeros
`time_spent` has 22 (5.3%) zeros	Zeros

Reproduction

Analysis started	2024-04-19 01:05:45.198989
Analysis finished	2024-04-19 01:05:48.539420
Duration	3.34 seconds
Software version	ydata-profiling vv4.7.0
Download configuration	config.json

id
Real number (ℝ)

HIGH CORRELATION

Distinct	19
Distinct (%)	4.5%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	24319.263

Minimum	23692
Maximum	25073
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	3.4 KiB

Quantile statistics

Minimum	23692
5-th percentile	23692
Q1	23754
median	24084
Q3	25044
95-th percentile	25073
Maximum	25073
Range	1381
Interquartile range (IQR)	1290

Descriptive statistics

Standard deviation	602.42483
Coefficient of variation (CV)	0.024771508
Kurtosis	-1.8308687
Mean	24319.263
Median Absolute Deviation (MAD)	357
Skewness	0.26300496
Sum	10165452
Variance	362915.68
Monotonicity	Increasing

Histogram with fixed size bins (bins=19)

Value	Count	Frequency (%)
23692	22	5.3%
24085	22	5.3%
25071	22	5.3%
25068	22	5.3%
25051	22	5.3%
25044	22	5.3%
25037	22	5.3%
24889	22	5.3%
24861	22	5.3%
24084	22	5.3%
Other values (9)	198	47.4%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
23692	22	5.3%
23727	22	5.3%
23733	22	5.3%
23735	22	5.3%
23754	22	5.3%
23755	22	5.3%
23756	22	5.3%
23759	22	5.3%
23892	22	5.3%
24084	22	5.3%

Value	Count	Frequency (%)
25073	22	5.3%
25071	22	5.3%
25068	22	5.3%
25051	22	5.3%
25044	22	5.3%
25037	22	5.3%
24889	22	5.3%
24861	22	5.3%
24085	22	5.3%
24084	22	5.3%

user_id
Categorical

CONSTANT

Distinct	1
Distinct (%)	0.2%
Missing	0
Missing (%)	0.0%
Memory size	25.0 KiB

2534	418

Length

Max length	4
Median length	4
Mean length	4
Min length	4

Characters and Unicode

Total characters	1672
Distinct characters	4
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	2534
2nd row	2534
3rd row	2534
4th row	2534
5th row	2534

Common Values

Value	Count	Frequency (%)
2534	418	100.0%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
2534	418	100.0%

Most occurring characters

Value	Count	Frequency (%)
2	418	25.0%
5	418	25.0%
3	418	25.0%
4	418	25.0%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	1672	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
2	418	25.0%
5	418	25.0%
3	418	25.0%
4	418	25.0%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	1672	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
2	418	25.0%
5	418	25.0%
3	418	25.0%
4	418	25.0%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	1672	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
2	418	25.0%
5	418	25.0%
3	418	25.0%
4	418	25.0%

lesson_id
Real number (ℝ)

HIGH CORRELATION

Distinct	19
Distinct (%)	4.5%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	1771.9474

Minimum	921
Maximum	2122
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	3.4 KiB

Quantile statistics

Minimum	921
5-th percentile	921
Q1	1556
median	2112
Q3	2118
95-th percentile	2122
Maximum	2122
Range	1201
Interquartile range (IQR)	562

Descriptive statistics

Standard deviation	444.31582
Coefficient of variation (CV)	0.25075001
Kurtosis	-0.64663386
Mean	1771.9474
Median Absolute Deviation (MAD)	10
Skewness	-0.94141431
Sum	740674
Variance	197416.55
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=19)

Value	Count	Frequency (%)
1855	22	5.3%
2114	22	5.3%
2121	22	5.3%
2122	22	5.3%
2118	22	5.3%
2120	22	5.3%
2117	22	5.3%
2116	22	5.3%
2115	22	5.3%
2112	22	5.3%
Other values (9)	198	47.4%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
921	22	5.3%
943	22	5.3%
944	22	5.3%
1187	22	5.3%
1556	22	5.3%
1615	22	5.3%
1616	22	5.3%
1855	22	5.3%
1856	22	5.3%
2112	22	5.3%

Value	Count	Frequency (%)
2122	22	5.3%
2121	22	5.3%
2120	22	5.3%
2119	22	5.3%
2118	22	5.3%
2117	22	5.3%
2116	22	5.3%
2115	22	5.3%
2114	22	5.3%
2112	22	5.3%

group_id
Categorical

HIGH CORRELATION

Distinct	3
Distinct (%)	0.7%
Missing	0
Missing (%)	0.0%
Memory size	25.0 KiB

1760	220
1717	132
1700	66

Length

Max length	4
Median length	4
Mean length	4
Min length	4

Characters and Unicode

Total characters	1672
Distinct characters	4
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	1717
2nd row	1717
3rd row	1717
4th row	1717
5th row	1717

Common Values

Value	Count	Frequency (%)
1760	220	52.6%
1717	132	31.6%
1700	66	15.8%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
1760	220	52.6%
1717	132	31.6%
1700	66	15.8%

Most occurring characters

Value	Count	Frequency (%)
1	550	32.9%
7	550	32.9%
0	352	21.1%
6	220	13.2%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	1672	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
1	550	32.9%
7	550	32.9%
0	352	21.1%
6	220	13.2%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	1672	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
1	550	32.9%
7	550	32.9%
0	352	21.1%
6	220	13.2%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	1672	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
1	550	32.9%
7	550	32.9%
0	352	21.1%
6	220	13.2%

event_id
Real number (ℝ)

HIGH CORRELATION

Distinct	19
Distinct (%)	4.5%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	157001.58

Minimum	19951
Maximum	279721
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	3.4 KiB

Quantile statistics

Minimum	19951
5-th percentile	19951
Q1	20788
median	279712
Q3	279717
95-th percentile	279721
Maximum	279721
Range	259770
Interquartile range (IQR)	258929

Descriptive statistics

Standard deviation	129508.45
Coefficient of variation (CV)	0.82488629
Kurtosis	-1.9983528
Mean	157001.58
Median Absolute Deviation (MAD)	9
Skewness	-0.10581532
Sum	65626660
Variance	1.6772439 × 10¹⁰
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=19)

Value	Count	Frequency (%)
20789	22	5.3%
279713	22	5.3%
279720	22	5.3%
279721	22	5.3%
279717	22	5.3%
279719	22	5.3%
279716	22	5.3%
279715	22	5.3%
279714	22	5.3%
279712	22	5.3%
Other values (9)	198	47.4%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
19951	22	5.3%
19952	22	5.3%
19953	22	5.3%
20787	22	5.3%
20788	22	5.3%
20789	22	5.3%
20790	22	5.3%
21427	22	5.3%
21428	22	5.3%
279712	22	5.3%

Value	Count	Frequency (%)
279721	22	5.3%
279720	22	5.3%
279719	22	5.3%
279718	22	5.3%
279717	22	5.3%
279716	22	5.3%
279715	22	5.3%
279714	22	5.3%
279713	22	5.3%
279712	22	5.3%

engine
Categorical

HIGH CORRELATION

Distinct	2
Distinct (%)	0.5%
Missing	0
Missing (%)	0.0%
Memory size	31.7 KiB

linearStandAloneEngine	242
carryForwardEngine	176

Length

Max length	22
Median length	22
Mean length	20.315789
Min length	18

Characters and Unicode

Total characters	8492
Distinct characters	17
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	linearStandAloneEngine
2nd row	linearStandAloneEngine
3rd row	linearStandAloneEngine
4th row	linearStandAloneEngine
5th row	linearStandAloneEngine

Common Values

Value	Count	Frequency (%)
linearStandAloneEngine	242	57.9%
carryForwardEngine	176	42.1%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
linearstandaloneengine	242	57.9%
carryforwardengine	176	42.1%

Most occurring characters

Value	Count	Frequency (%)
n	1562	18.4%
r	946	11.1%
e	902	10.6%
a	836	9.8%
i	660	7.8%
l	484	5.7%
o	418	4.9%
g	418	4.9%
E	418	4.9%
d	418	4.9%
Other values (7)	1430	16.8%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	8492	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
n	1562	18.4%
r	946	11.1%
e	902	10.6%
a	836	9.8%
i	660	7.8%
l	484	5.7%
o	418	4.9%
g	418	4.9%
E	418	4.9%
d	418	4.9%
Other values (7)	1430	16.8%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	8492	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
n	1562	18.4%
r	946	11.1%
e	902	10.6%
a	836	9.8%
i	660	7.8%
l	484	5.7%
o	418	4.9%
g	418	4.9%
E	418	4.9%
d	418	4.9%
Other values (7)	1430	16.8%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	8492	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
n	1562	18.4%
r	946	11.1%
e	902	10.6%
a	836	9.8%
i	660	7.8%
l	484	5.7%
o	418	4.9%
g	418	4.9%
E	418	4.9%
d	418	4.9%
Other values (7)	1430	16.8%

items
Categorical

HIGH CORRELATION UNIFORM

Distinct	19
Distinct (%)	4.5%
Missing	0
Missing (%)	0.0%
Memory size	47.8 KiB

[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	22
[26680, 26681, 26686, 26687, 26688, 26689, 26682, 26683, 26684, 26685]	22
[45704, 45705, 45706, 45707]	22
[47871, 47877, 47880]	22
[18243, 18237, 18240, 18241, 18244, 18245]	22
Other values (14)	308

Length

Max length	70
Median length	70
Mean length	59.684211
Min length	21

Characters and Unicode

Total characters	24948
Distinct characters	14
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]
2nd row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]
3rd row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]
4th row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]
5th row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]

Common Values

Value	Count	Frequency (%)
[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	22	5.3%
[26680, 26681, 26686, 26687, 26688, 26689, 26682, 26683, 26684, 26685]	22	5.3%
[45704, 45705, 45706, 45707]	22	5.3%
[47871, 47877, 47880]	22	5.3%
[18243, 18237, 18240, 18241, 18244, 18245]	22	5.3%
[18227, 18235, 18225]	22	5.3%
[18215, 18223, 18213, 18214, 18216, 18218, 18219, 18220]	22	5.3%
[46120, 46127, 46157, 46163, 46169, 46174, 46185, 46187, 46194, 46197]	22	5.3%
[46208, 46209, 46210, 46211, 46212, 46213, 46214, 46215, 46216, 46217]	22	5.3%
[54546, 54547, 54548, 54549, 54550, 54551, 54847, 54553, 54554, 54555]	22	5.3%
Other values (9)	198	47.4%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
45764	22	0.6%
54800	22	0.6%
54593	22	0.6%
54596	22	0.6%
54598	22	0.6%
54602	22	0.6%
54604	22	0.6%
54606	22	0.6%
54607	22	0.6%
54608	22	0.6%
Other values (152)	3344	93.8%

Most occurring characters

Value	Count	Frequency (%)
5	3718	14.9%
4	3586	14.4%
,	3146	12.6%
	3146	12.6%
8	2090	8.4%
7	1760	7.1%
6	1716	6.9%
1	1672	6.7%
2	1342	5.4%
0	858	3.4%
Other values (4)	1914	7.7%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	24948	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
5	3718	14.9%
4	3586	14.4%
,	3146	12.6%
	3146	12.6%
8	2090	8.4%
7	1760	7.1%
6	1716	6.9%
1	1672	6.7%
2	1342	5.4%
0	858	3.4%
Other values (4)	1914	7.7%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	24948	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
5	3718	14.9%
4	3586	14.4%
,	3146	12.6%
	3146	12.6%
8	2090	8.4%
7	1760	7.1%
6	1716	6.9%
1	1672	6.7%
2	1342	5.4%
0	858	3.4%
Other values (4)	1914	7.7%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	24948	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
5	3718	14.9%
4	3586	14.4%
,	3146	12.6%
	3146	12.6%
8	2090	8.4%
7	1760	7.1%
6	1716	6.9%
1	1672	6.7%
2	1342	5.4%
0	858	3.4%
Other values (4)	1914	7.7%

load
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	9
Distinct (%)	2.2%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	6.2105263

Minimum	0
Maximum	9
Zeros	22
Zeros (%)	5.3%
Negative	0
Negative (%)	0.0%
Memory size	3.4 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	3
median	8
Q3	9
95-th percentile	9
Maximum	9
Range	9
Interquartile range (IQR)	6

Descriptive statistics

Standard deviation	3.1085377
Coefficient of variation (CV)	0.50052725
Kurtosis	-1.0492844
Mean	6.2105263
Median Absolute Deviation (MAD)	1
Skewness	-0.71626396
Sum	2596
Variance	9.6630064
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=9)

Value	Count	Frequency (%)
9	154	36.8%
8	66	15.8%
2	44	10.5%
7	44	10.5%
3	22	5.3%
5	22	5.3%
1	22	5.3%
0	22	5.3%
4	22	5.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	22	5.3%
1	22	5.3%
2	44	10.5%
3	22	5.3%
4	22	5.3%
5	22	5.3%
7	44	10.5%
8	66	15.8%
9	154	36.8%

Value	Count	Frequency (%)
9	154	36.8%
8	66	15.8%
7	44	10.5%
5	22	5.3%
4	22	5.3%
3	22	5.3%
2	44	10.5%
1	22	5.3%
0	22	5.3%

pass
Categorical

HIGH CORRELATION MISSING UNIFORM

Distinct	16
Distinct (%)	4.5%
Missing	66
Missing (%)	15.8%
Memory size	35.8 KiB

[26680, 26681, 26686, 26683, 26684, 26685]	22
[45708, 45709, 45710, 45711, 45712, 45713, 45706, 45707]	22
[47692, 47857, 47860, 47863, 47866, 47883, 47874, 47871]	22
[18246, 18239, 18242, 18248, 18238, 18247, 18243, 18240]	22
[18230]	22
Other values (11)	242

Length

Max length	70
Median length	63
Mean length	40.6875
Min length	7

Characters and Unicode

Total characters	14322
Distinct characters	14
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]
2nd row	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]
3rd row	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]
4th row	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]
5th row	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]

Common Values

Value	Count	Frequency (%)
[26680, 26681, 26686, 26683, 26684, 26685]	22	5.3%
[45708, 45709, 45710, 45711, 45712, 45713, 45706, 45707]	22	5.3%
[47692, 47857, 47860, 47863, 47866, 47883, 47874, 47871]	22	5.3%
[18246, 18239, 18242, 18248, 18238, 18247, 18243, 18240]	22	5.3%
[18230]	22	5.3%
[18217]	22	5.3%
[46157]	22	5.3%
[46208, 46209]	22	5.3%
[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	22	5.3%
[54780, 54777, 54778, 54779]	22	5.3%
Other values (6)	132	31.6%
(Missing)	66	15.8%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
26680	22	1.1%
54606	22	1.1%
54794	22	1.1%
54793	22	1.1%
54792	22	1.1%
54791	22	1.1%
54608	22	1.1%
54598	22	1.1%
54596	22	1.1%
54609	22	1.1%
Other values (83)	1826	89.2%

Most occurring characters

Value	Count	Frequency (%)
4	1980	13.8%
5	1892	13.2%
,	1694	11.8%
	1694	11.8%
8	1650	11.5%
7	1122	7.8%
6	748	5.2%
1	748	5.2%
2	704	4.9%
0	638	4.5%
Other values (4)	1452	10.1%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	14322	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
4	1980	13.8%
5	1892	13.2%
,	1694	11.8%
	1694	11.8%
8	1650	11.5%
7	1122	7.8%
6	748	5.2%
1	748	5.2%
2	704	4.9%
0	638	4.5%
Other values (4)	1452	10.1%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	14322	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
4	1980	13.8%
5	1892	13.2%
,	1694	11.8%
	1694	11.8%
8	1650	11.5%
7	1122	7.8%
6	748	5.2%
1	748	5.2%
2	704	4.9%
0	638	4.5%
Other values (4)	1452	10.1%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	14322	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
4	1980	13.8%
5	1892	13.2%
,	1694	11.8%
	1694	11.8%
8	1650	11.5%
7	1122	7.8%
6	748	5.2%
1	748	5.2%
2	704	4.9%
0	638	4.5%
Other values (4)	1452	10.1%

fail
Categorical

HIGH CORRELATION MISSING UNIFORM

Distinct	13
Distinct (%)	4.5%
Missing	132
Missing (%)	31.6%
Memory size	25.3 KiB

[45764, 45765]	22
[26687, 26688, 26689, 26682]	22
[45704, 45705]	22
[47877, 47880]	22
[18237, 18241, 18244]	22
Other values (8)	176

Length

Max length	56
Median length	35
Mean length	18.307692
Min length	7

Characters and Unicode

Total characters	5236
Distinct characters	14
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	[45764, 45765]
2nd row	[45764, 45765]
3rd row	[45764, 45765]
4th row	[45764, 45765]
5th row	[45764, 45765]

Common Values

Value	Count	Frequency (%)
[45764, 45765]	22	5.3%
[26687, 26688, 26689, 26682]	22	5.3%
[45704, 45705]	22	5.3%
[47877, 47880]	22	5.3%
[18237, 18241, 18244]	22	5.3%
[18227]	22	5.3%
[46120, 46127, 46163, 46169, 46174, 46185, 46187, 46194]	22	5.3%
[46210]	22	5.3%
[54546, 54550, 54551, 54847, 54553]	22	5.3%
[54602, 54604]	22	5.3%
Other values (3)	66	15.8%
(Missing)	132	31.6%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
45764	22	2.9%
54551	22	2.9%
46185	22	2.9%
46187	22	2.9%
46194	22	2.9%
46210	22	2.9%
54546	22	2.9%
54550	22	2.9%
54847	22	2.9%
45765	22	2.9%
Other values (24)	528	70.6%

Most occurring characters

Value	Count	Frequency (%)
4	792	15.1%
5	550	10.5%
6	550	10.5%
,	462	8.8%
	462	8.8%
1	418	8.0%
8	396	7.6%
7	352	6.7%
2	308	5.9%
[	286	5.5%
Other values (4)	660	12.6%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	5236	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
4	792	15.1%
5	550	10.5%
6	550	10.5%
,	462	8.8%
	462	8.8%
1	418	8.0%
8	396	7.6%
7	352	6.7%
2	308	5.9%
[	286	5.5%
Other values (4)	660	12.6%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	5236	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
4	792	15.1%
5	550	10.5%
6	550	10.5%
,	462	8.8%
	462	8.8%
1	418	8.0%
8	396	7.6%
7	352	6.7%
2	308	5.9%
[	286	5.5%
Other values (4)	660	12.6%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	5236	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
4	792	15.1%
5	550	10.5%
6	550	10.5%
,	462	8.8%
	462	8.8%
1	418	8.0%
8	396	7.6%
7	352	6.7%
2	308	5.9%
[	286	5.5%
Other values (4)	660	12.6%

round
Categorical

HIGH CORRELATION

Distinct	4
Distinct (%)	1.0%
Missing	0
Missing (%)	0.0%
Memory size	23.8 KiB

1	242
2	88
4	66
3	22

Length

Max length	1
Median length	1
Mean length	1
Min length	1

Characters and Unicode

Total characters	418
Distinct characters	4
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	1
2nd row	1
3rd row	1
4th row	1
5th row	1

Common Values

Value	Count	Frequency (%)
1	242	57.9%
2	88	21.1%
4	66	15.8%
3	22	5.3%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
1	242	57.9%
2	88	21.1%
4	66	15.8%
3	22	5.3%

Most occurring characters

Value	Count	Frequency (%)
1	242	57.9%
2	88	21.1%
4	66	15.8%
3	22	5.3%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	418	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
1	242	57.9%
2	88	21.1%
4	66	15.8%
3	22	5.3%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	418	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
1	242	57.9%
2	88	21.1%
4	66	15.8%
3	22	5.3%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	418	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
1	242	57.9%
2	88	21.1%
4	66	15.8%
3	22	5.3%

status
Categorical

HIGH CORRELATION

Distinct	3
Distinct (%)	0.7%
Missing	0
Missing (%)	0.0%
Memory size	26.9 KiB

passed	176
in_progress	154
assessment	88

Length

Max length	11
Median length	10
Mean length	8.6842105
Min length	6

Characters and Unicode

Total characters	3630
Distinct characters	13
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	passed
2nd row	passed
3rd row	passed
4th row	passed
5th row	passed

Common Values

Value	Count	Frequency (%)
passed	176	42.1%
in_progress	154	36.8%
assessment	88	21.1%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
passed	176	42.1%
in_progress	154	36.8%
assessment	88	21.1%

Most occurring characters

Value	Count	Frequency (%)
s	1012	27.9%
e	506	13.9%
p	330	9.1%
r	308	8.5%
a	264	7.3%
n	242	6.7%
d	176	4.8%
i	154	4.2%
_	154	4.2%
o	154	4.2%
Other values (3)	330	9.1%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	3630	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
s	1012	27.9%
e	506	13.9%
p	330	9.1%
r	308	8.5%
a	264	7.3%
n	242	6.7%
d	176	4.8%
i	154	4.2%
_	154	4.2%
o	154	4.2%
Other values (3)	330	9.1%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	3630	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
s	1012	27.9%
e	506	13.9%
p	330	9.1%
r	308	8.5%
a	264	7.3%
n	242	6.7%
d	176	4.8%
i	154	4.2%
_	154	4.2%
o	154	4.2%
Other values (3)	330	9.1%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	3630	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
s	1012	27.9%
e	506	13.9%
p	330	9.1%
r	308	8.5%
a	264	7.3%
n	242	6.7%
d	176	4.8%
i	154	4.2%
_	154	4.2%
o	154	4.2%
Other values (3)	330	9.1%

history
Categorical

HIGH CORRELATION

Distinct	18
Distinct (%)	4.3%
Missing	0
Missing (%)	0.0%
Memory size	326.5 KiB

{"skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	44
{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	22
{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [45704, 45705, 45706, 45707], "passed": [45708, 45709, 45710, 45711, 45712, 45713], "points": 35, "attempted": [45704, 45705, 45706, 45707, 45708, 45709, 45710, 45711, 45712, 45713], "cefr_rate": 18.75, "created_at": "2024-03-06T04:21:19.940552Z", "lang_level": 1, "time_spent": "250"}, "2": {"score": 0, "engine": "carryForwardEngine", "failed": [45704, 45705, 45706, 45707], "passed": [], "points": 36, "attempted": [45704, 45705, 45706, 45707], "cefr_rate": 18.75, "created_at": "2024-03-06T04:24:16.034067Z", "lang_level": 1, "time_spent": "300"}, "3": {"score": 0, "engine": "carryForwardEngine", "failed": [45704, 45705], "passed": [45706, 45707], "points": 58, "attempted": [45704, 45705, 45706, 45707], "cefr_rate": 25, "created_at": "2024-03-06T05:14:42.956894Z", "lang_level": 1, "time_spent": "328"}}, "cefr_rate": {"1709689884": 8.33333333, "1709689885": 12.5, "1709689886": 18.75, "1709689887": 18.75, "1709689888": 18.75, "1709689889": 18.75, "1709689890": 18.75, "1709689891": 18.75, "1709689892": 18.75, "1709689893": 18.75, "1709689894": 21.875}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T05:14:42.956942Z", "streak_badge_given_at_index": 8, "perseverance_badge_given_at_index": 3}	22
{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [47871, 47874, 47877, 47880], "passed": [47692, 47857, 47860, 47863, 47866, 47883], "points": 33, "attempted": [47692, 47857, 47860, 47863, 47866, 47871, 47874, 47877, 47880, 47883], "cefr_rate": 13.095238095, "created_at": "2024-03-06T04:12:51.624980Z", "lang_level": 1, "time_spent": "379"}, "2": {"score": 0, "engine": "carryForwardEngine", "failed": [47871, 47874, 47877, 47880], "passed": [], "points": 34, "attempted": [47871, 47874, 47877, 47880], "cefr_rate": 13.095238095, "created_at": "2024-03-06T04:14:17.787087Z", "lang_level": 1, "time_spent": "386"}, "3": {"score": 0, "engine": "carryForwardEngine", "failed": [47871, 47877, 47880], "passed": [47874], "points": 40, "attempted": [47871, 47874, 47877, 47880], "cefr_rate": 14.880952385, "created_at": "2024-03-06T05:23:03.040310Z", "lang_level": 1, "time_spent": "453"}, "4": {"score": 0, "engine": "carryForwardEngine", "failed": [47877, 47880], "passed": [47871], "points": 55, "attempted": [47871, 47877, 47880], "cefr_rate": 16.666666665, "created_at": "2024-03-06T05:24:27.318589Z", "lang_level": 1, "time_spent": "456"}}, "cefr_rate": {"1709691177": 25, "1709691178": 25, "1709691179": 25, "1709691180": 25, "1709691181": 25, "1709691182": 20.83333333, "1709691183": 17.85714286, "1709691184": 17.85714286, "1709691185": 17.85714286, "1709691186": 13.095238095, "1709691187": 13.095238095, "1709691188": 13.095238095, "1709691189": 13.095238095, "1709691190": 14.880952385, "1709691191": 14.880952385, "1709691192": 16.666666665, "1709691193": 16.666666665}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1856, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T05:24:27.318622Z", "streak_badge_given_at_index": 4, "perseverance_badge_given_at_index": 3}	22
{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [18238, 18243, 18246], "passed": [], "points": 0, "attempted": [18238, 18243, 18246], "cefr_rate": 0, "created_at": "2024-03-06T05:31:34.736440Z", "lang_level": 1, "time_spent": "244"}, "2": {"score": 0, "engine": "carryForwardEngine", "failed": [18238, 18243, 18237, 18240, 18241, 18244, 18245, 18247], "passed": [18246, 18239, 18242, 18248], "points": 22, "attempted": [18238, 18243, 18246, 18237, 18239, 18240, 18241, 18242, 18244, 18245, 18247, 18248], "cefr_rate": 16.666666665, "created_at": "2024-03-06T05:37:32.250476Z", "lang_level": 1, "time_spent": "286"}, "3": {"score": 0, "engine": "carryForwardEngine", "failed": [18243, 18237, 18240, 18241, 18244, 18245], "passed": [18238, 18247], "points": 35, "attempted": [18238, 18243, 18237, 18240, 18241, 18244, 18245, 18247], "cefr_rate": 16.666666666666668, "created_at": "2024-03-06T13:01:24.927075Z", "lang_level": 1, "time_spent": "294"}}, "cefr_rate": {"1709703166": 25, "1709703167": 25, "1709703168": 25, "1709703169": 25, "1709703170": 25, "1709703171": 25, "1709703172": 25, "1709703173": 25, "1709703174": 25, "1709703175": 20.833333335, "1709703176": 20.833333335, "1709703177": 20.833333335, "1709703178": 20.833333335, "1709703179": 20.833333335, "1709703180": 20.833333335, "1709703181": 20.833333335, "1709703182": 19.444444446666665, "1709703183": 19.444444446666665, "1709703184": 22.222222223333333, "1709703185": 22.222222223333333, "1709703186": 22.222222223333333}, "skills_count": {"reading": 1, "writing": 1, "listening": 1}, "weakest_skill": "", "is_weakest_skill_on": true, "perseverance_badge_given_at_index": 4}	22
Other values (13)	286

Length

Max length	1883
Median length	798
Mean length	742.52632
Min length	69

Characters and Unicode

Total characters	310376
Distinct characters	50
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}
2nd row	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}
3rd row	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}
4th row	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}
5th row	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}

Common Values

Value	Count	Frequency (%)
{"skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	44	10.5%
{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	22	5.3%
{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [45704, 45705, 45706, 45707], "passed": [45708, 45709, 45710, 45711, 45712, 45713], "points": 35, "attempted": [45704, 45705, 45706, 45707, 45708, 45709, 45710, 45711, 45712, 45713], "cefr_rate": 18.75, "created_at": "2024-03-06T04:21:19.940552Z", "lang_level": 1, "time_spent": "250"}, "2": {"score": 0, "engine": "carryForwardEngine", "failed": [45704, 45705, 45706, 45707], "passed": [], "points": 36, "attempted": [45704, 45705, 45706, 45707], "cefr_rate": 18.75, "created_at": "2024-03-06T04:24:16.034067Z", "lang_level": 1, "time_spent": "300"}, "3": {"score": 0, "engine": "carryForwardEngine", "failed": [45704, 45705], "passed": [45706, 45707], "points": 58, "attempted": [45704, 45705, 45706, 45707], "cefr_rate": 25, "created_at": "2024-03-06T05:14:42.956894Z", "lang_level": 1, "time_spent": "328"}}, "cefr_rate": {"1709689884": 8.33333333, "1709689885": 12.5, "1709689886": 18.75, "1709689887": 18.75, "1709689888": 18.75, "1709689889": 18.75, "1709689890": 18.75, "1709689891": 18.75, "1709689892": 18.75, "1709689893": 18.75, "1709689894": 21.875}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T05:14:42.956942Z", "streak_badge_given_at_index": 8, "perseverance_badge_given_at_index": 3}	22	5.3%
{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [47871, 47874, 47877, 47880], "passed": [47692, 47857, 47860, 47863, 47866, 47883], "points": 33, "attempted": [47692, 47857, 47860, 47863, 47866, 47871, 47874, 47877, 47880, 47883], "cefr_rate": 13.095238095, "created_at": "2024-03-06T04:12:51.624980Z", "lang_level": 1, "time_spent": "379"}, "2": {"score": 0, "engine": "carryForwardEngine", "failed": [47871, 47874, 47877, 47880], "passed": [], "points": 34, "attempted": [47871, 47874, 47877, 47880], "cefr_rate": 13.095238095, "created_at": "2024-03-06T04:14:17.787087Z", "lang_level": 1, "time_spent": "386"}, "3": {"score": 0, "engine": "carryForwardEngine", "failed": [47871, 47877, 47880], "passed": [47874], "points": 40, "attempted": [47871, 47874, 47877, 47880], "cefr_rate": 14.880952385, "created_at": "2024-03-06T05:23:03.040310Z", "lang_level": 1, "time_spent": "453"}, "4": {"score": 0, "engine": "carryForwardEngine", "failed": [47877, 47880], "passed": [47871], "points": 55, "attempted": [47871, 47877, 47880], "cefr_rate": 16.666666665, "created_at": "2024-03-06T05:24:27.318589Z", "lang_level": 1, "time_spent": "456"}}, "cefr_rate": {"1709691177": 25, "1709691178": 25, "1709691179": 25, "1709691180": 25, "1709691181": 25, "1709691182": 20.83333333, "1709691183": 17.85714286, "1709691184": 17.85714286, "1709691185": 17.85714286, "1709691186": 13.095238095, "1709691187": 13.095238095, "1709691188": 13.095238095, "1709691189": 13.095238095, "1709691190": 14.880952385, "1709691191": 14.880952385, "1709691192": 16.666666665, "1709691193": 16.666666665}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1856, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T05:24:27.318622Z", "streak_badge_given_at_index": 4, "perseverance_badge_given_at_index": 3}	22	5.3%
{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [18238, 18243, 18246], "passed": [], "points": 0, "attempted": [18238, 18243, 18246], "cefr_rate": 0, "created_at": "2024-03-06T05:31:34.736440Z", "lang_level": 1, "time_spent": "244"}, "2": {"score": 0, "engine": "carryForwardEngine", "failed": [18238, 18243, 18237, 18240, 18241, 18244, 18245, 18247], "passed": [18246, 18239, 18242, 18248], "points": 22, "attempted": [18238, 18243, 18246, 18237, 18239, 18240, 18241, 18242, 18244, 18245, 18247, 18248], "cefr_rate": 16.666666665, "created_at": "2024-03-06T05:37:32.250476Z", "lang_level": 1, "time_spent": "286"}, "3": {"score": 0, "engine": "carryForwardEngine", "failed": [18243, 18237, 18240, 18241, 18244, 18245], "passed": [18238, 18247], "points": 35, "attempted": [18238, 18243, 18237, 18240, 18241, 18244, 18245, 18247], "cefr_rate": 16.666666666666668, "created_at": "2024-03-06T13:01:24.927075Z", "lang_level": 1, "time_spent": "294"}}, "cefr_rate": {"1709703166": 25, "1709703167": 25, "1709703168": 25, "1709703169": 25, "1709703170": 25, "1709703171": 25, "1709703172": 25, "1709703173": 25, "1709703174": 25, "1709703175": 20.833333335, "1709703176": 20.833333335, "1709703177": 20.833333335, "1709703178": 20.833333335, "1709703179": 20.833333335, "1709703180": 20.833333335, "1709703181": 20.833333335, "1709703182": 19.444444446666665, "1709703183": 19.444444446666665, "1709703184": 22.222222223333333, "1709703185": 22.222222223333333, "1709703186": 22.222222223333333}, "skills_count": {"reading": 1, "writing": 1, "listening": 1}, "weakest_skill": "", "is_weakest_skill_on": true, "perseverance_badge_given_at_index": 4}	22	5.3%
{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [18227, 18235], "passed": [18230], "points": 5, "attempted": [18227, 18230, 18235], "cefr_rate": 25, "created_at": "2024-03-06T05:43:24.441419Z", "lang_level": 1, "time_spent": "185"}}, "cefr_rate": {"1709703758": 25, "1709703759": 25}, "skills_count": {"reading": 1, "listening": 2}, "weakest_skill": "listening", "is_weakest_skill_on": true}	22	5.3%
{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [18215, 18223], "passed": [18217], "points": 5, "attempted": [18215, 18217, 18223], "cefr_rate": 25, "created_at": "2024-03-06T05:54:55.204051Z", "lang_level": 1, "time_spent": "153"}}, "cefr_rate": {"1709704027": 25}, "skills_count": {"writing": 1, "listening": 2}, "weakest_skill": "listening", "is_weakest_skill_on": true}	22	5.3%
{"cefr_rate": {"1709725577": 50, "1709725578": 25, "1709725579": 16.66666667, "1709725580": 12.5, "1709725581": 12.5, "1709725582": 12.5, "1709725583": 12.5}, "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true, "perseverance_badge_given_at_index": 6}	22	5.3%
{"cefr_rate": {"1710242548": 50, "1710242549": 50}, "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	22	5.3%
{"skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true, "perseverance_badge_given_at_index": 6}	22	5.3%
Other values (8)	176	42.1%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
25	1430	4.9%
1	902	3.1%
cefr_rate	858	3.0%
0	858	3.0%
	638	2.2%
true	594	2.0%
score	506	1.7%
failed	506	1.7%
points	506	1.7%
attempted	506	1.7%
Other values (384)	21692	74.8%

Most occurring characters

Value	Count	Frequency (%)
"	28600	9.2%
	28578	9.2%
,	16456	5.3%
e	15202	4.9%
1	14652	4.7%
:	13486	4.3%
7	13156	4.2%
5	13156	4.2%
4	11946	3.8%
8	11946	3.8%
Other values (40)	143198	46.1%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	310376	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
"	28600	9.2%
	28578	9.2%
,	16456	5.3%
e	15202	4.9%
1	14652	4.7%
:	13486	4.3%
7	13156	4.2%
5	13156	4.2%
4	11946	3.8%
8	11946	3.8%
Other values (40)	143198	46.1%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	310376	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
"	28600	9.2%
	28578	9.2%
,	16456	5.3%
e	15202	4.9%
1	14652	4.7%
:	13486	4.3%
7	13156	4.2%
5	13156	4.2%
4	11946	3.8%
8	11946	3.8%
Other values (40)	143198	46.1%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	310376	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
"	28600	9.2%
	28578	9.2%
,	16456	5.3%
e	15202	4.9%
1	14652	4.7%
:	13486	4.3%
7	13156	4.2%
5	13156	4.2%
4	11946	3.8%
8	11946	3.8%
Other values (40)	143198	46.1%

created_at
Categorical

HIGH CORRELATION UNIFORM

Distinct	19
Distinct (%)	4.5%
Missing	0
Missing (%)	0.0%
Memory size	31.2 KiB

2024-03-05 07:35:04	22
2024-03-05 12:53:59	22
2024-03-06 01:37:50	22
2024-03-06 02:09:40	22
2024-03-06 05:26:45	22
Other values (14)	308

Length

Max length	19
Median length	19
Mean length	19
Min length	19

Characters and Unicode

Total characters	7942
Distinct characters	13
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	2024-03-05 07:35:04
2nd row	2024-03-05 07:35:04
3rd row	2024-03-05 07:35:04
4th row	2024-03-05 07:35:04
5th row	2024-03-05 07:35:04

Common Values

Value	Count	Frequency (%)
2024-03-05 07:35:04	22	5.3%
2024-03-05 12:53:59	22	5.3%
2024-03-06 01:37:50	22	5.3%
2024-03-06 02:09:40	22	5.3%
2024-03-06 05:26:45	22	5.3%
2024-03-06 05:40:04	22	5.3%
2024-03-06 05:45:20	22	5.3%
2024-03-06 11:39:06	22	5.3%
2024-03-12 11:01:20	22	5.3%
2024-03-23 02:13:16	22	5.3%
Other values (9)	198	47.4%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
2024-03-06	132	15.8%
2024-04-12	132	15.8%
2024-03-05	44	5.3%
2024-03-23	44	5.3%
02:15:29	22	2.6%
11:06:06	22	2.6%
08:37:55	22	2.6%
06:42:25	22	2.6%
02:56:29	22	2.6%
01:29:11	22	2.6%
Other values (16)	352	42.1%

Most occurring characters

Value	Count	Frequency (%)
0	1650	20.8%
2	1386	17.5%
4	836	10.5%
-	836	10.5%
:	836	10.5%
1	528	6.6%
3	506	6.4%
	418	5.3%
5	374	4.7%
6	286	3.6%
Other values (3)	286	3.6%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	7942	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
0	1650	20.8%
2	1386	17.5%
4	836	10.5%
-	836	10.5%
:	836	10.5%
1	528	6.6%
3	506	6.4%
	418	5.3%
5	374	4.7%
6	286	3.6%
Other values (3)	286	3.6%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	7942	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
0	1650	20.8%
2	1386	17.5%
4	836	10.5%
-	836	10.5%
:	836	10.5%
1	528	6.6%
3	506	6.4%
	418	5.3%
5	374	4.7%
6	286	3.6%
Other values (3)	286	3.6%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	7942	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
0	1650	20.8%
2	1386	17.5%
4	836	10.5%
-	836	10.5%
:	836	10.5%
1	528	6.6%
3	506	6.4%
	418	5.3%
5	374	4.7%
6	286	3.6%
Other values (3)	286	3.6%

updated_at
Categorical

HIGH CORRELATION UNIFORM

Distinct	19
Distinct (%)	4.5%
Missing	0
Missing (%)	0.0%
Memory size	31.2 KiB

2024-03-06 03:23:01	22
2024-03-06 01:49:10	22
2024-03-06 05:14:43	22
2024-03-06 05:24:27	22
2024-03-06 13:03:37	22
Other values (14)	308

Length

Max length	19
Median length	19
Mean length	19
Min length	19

Characters and Unicode

Total characters	7942
Distinct characters	13
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	2024-03-06 03:23:01
2nd row	2024-03-06 03:23:01
3rd row	2024-03-06 03:23:01
4th row	2024-03-06 03:23:01
5th row	2024-03-06 03:23:01

Common Values

Value	Count	Frequency (%)
2024-03-06 03:23:01	22	5.3%
2024-03-06 01:49:10	22	5.3%
2024-03-06 05:14:43	22	5.3%
2024-03-06 05:24:27	22	5.3%
2024-03-06 13:03:37	22	5.3%
2024-03-06 05:43:56	22	5.3%
2024-03-06 05:54:55	22	5.3%
2024-03-06 12:49:41	22	5.3%
2024-03-12 11:27:33	22	5.3%
2024-04-12 07:29:56	22	5.3%
Other values (9)	198	47.4%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
2024-04-12	198	23.7%
2024-03-06	176	21.1%
01:49:10	22	2.6%
06:45:22	22	2.6%
12:08:44	22	2.6%
11:04:36	22	2.6%
06:43:10	22	2.6%
06:13:15	22	2.6%
02:26:48	22	2.6%
02:04:56	22	2.6%
Other values (13)	286	34.2%

Most occurring characters

Value	Count	Frequency (%)
0	1518	19.1%
2	1342	16.9%
4	990	12.5%
-	836	10.5%
:	836	10.5%
1	594	7.5%
3	484	6.1%
	418	5.3%
6	352	4.4%
5	330	4.2%
Other values (3)	242	3.0%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	7942	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
0	1518	19.1%
2	1342	16.9%
4	990	12.5%
-	836	10.5%
:	836	10.5%
1	594	7.5%
3	484	6.1%
	418	5.3%
6	352	4.4%
5	330	4.2%
Other values (3)	242	3.0%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	7942	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
0	1518	19.1%
2	1342	16.9%
4	990	12.5%
-	836	10.5%
:	836	10.5%
1	594	7.5%
3	484	6.1%
	418	5.3%
6	352	4.4%
5	330	4.2%
Other values (3)	242	3.0%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	7942	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
0	1518	19.1%
2	1342	16.9%
4	990	12.5%
-	836	10.5%
:	836	10.5%
1	594	7.5%
3	484	6.1%
	418	5.3%
6	352	4.4%
5	330	4.2%
Other values (3)	242	3.0%

rule
Categorical

HIGH CORRELATION

Distinct	3
Distinct (%)	0.7%
Missing	0
Missing (%)	0.0%
Memory size	38.2 KiB

{"step": "same", "level": 2}	264
{"step": "same", "level": 2, "has_streak": true}	88
{"step": "same", "level": 2, "has_perseverance": true}	66

Length

Max length	54
Median length	28
Mean length	36.315789
Min length	28

Characters and Unicode

Total characters	15180
Distinct characters	22
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	{"step": "same", "level": 2, "has_streak": true}
2nd row	{"step": "same", "level": 2, "has_streak": true}
3rd row	{"step": "same", "level": 2, "has_streak": true}
4th row	{"step": "same", "level": 2, "has_streak": true}
5th row	{"step": "same", "level": 2, "has_streak": true}

Common Values

Value	Count	Frequency (%)
{"step": "same", "level": 2}	264	63.2%
{"step": "same", "level": 2, "has_streak": true}	88	21.1%
{"step": "same", "level": 2, "has_perseverance": true}	66	15.8%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
step	418	21.1%
same	418	21.1%
level	418	21.1%
2	418	21.1%
true	154	7.8%
has_streak	88	4.4%
has_perseverance	66	3.3%

Most occurring characters

Value	Count	Frequency (%)
"	2816	18.6%
e	2178	14.3%
	1562	10.3%
s	1144	7.5%
:	990	6.5%
l	836	5.5%
a	726	4.8%
t	660	4.3%
,	572	3.8%
p	484	3.2%
Other values (12)	3212	21.2%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	15180	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
"	2816	18.6%
e	2178	14.3%
	1562	10.3%
s	1144	7.5%
:	990	6.5%
l	836	5.5%
a	726	4.8%
t	660	4.3%
,	572	3.8%
p	484	3.2%
Other values (12)	3212	21.2%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	15180	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
"	2816	18.6%
e	2178	14.3%
	1562	10.3%
s	1144	7.5%
:	990	6.5%
l	836	5.5%
a	726	4.8%
t	660	4.3%
,	572	3.8%
p	484	3.2%
Other values (12)	3212	21.2%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	15180	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
"	2816	18.6%
e	2178	14.3%
	1562	10.3%
s	1144	7.5%
:	990	6.5%
l	836	5.5%
a	726	4.8%
t	660	4.3%
,	572	3.8%
p	484	3.2%
Other values (12)	3212	21.2%

cefr_rate
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	10
Distinct (%)	2.4%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	19.403158

Minimum	0
Maximum	50
Zeros	66
Zeros (%)	15.8%
Negative	0
Negative (%)	0.0%
Memory size	3.4 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	16.67
median	21.43
Q3	25
95-th percentile	50
Maximum	50
Range	50
Interquartile range (IQR)	8.33

Descriptive statistics

Standard deviation	11.135851
Coefficient of variation (CV)	0.57391951
Kurtosis	1.5384088
Mean	19.403158
Median Absolute Deviation (MAD)	3.57
Skewness	0.28666107
Sum	8110.52
Variance	124.00717
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=10)

Value	Count	Frequency (%)
25	132	31.6%
16.67	66	15.8%
0	66	15.8%
21.43	22	5.3%
22.22	22	5.3%
12.5	22	5.3%
50	22	5.3%
20.83	22	5.3%
18.75	22	5.3%
22.92	22	5.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	66	15.8%
12.5	22	5.3%
16.67	66	15.8%
18.75	22	5.3%
20.83	22	5.3%
21.43	22	5.3%
22.22	22	5.3%
22.92	22	5.3%
25	132	31.6%
50	22	5.3%

Value	Count	Frequency (%)
50	22	5.3%
25	132	31.6%
22.92	22	5.3%
22.22	22	5.3%
21.43	22	5.3%
20.83	22	5.3%
18.75	22	5.3%
16.67	66	15.8%
12.5	22	5.3%
0	66	15.8%

points
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	15
Distinct (%)	3.6%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	32.210526

Minimum	0
Maximum	72
Zeros	44
Zeros (%)	10.5%
Negative	0
Negative (%)	0.0%
Memory size	3.4 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	5
median	35
Q3	56
95-th percentile	72
Maximum	72
Range	72
Interquartile range (IQR)	51

Descriptive statistics

Standard deviation	24.514738
Coefficient of variation (CV)	0.76107845
Kurtosis	-1.581948
Mean	32.210526
Median Absolute Deviation (MAD)	23
Skewness	0.002408675
Sum	13464
Variance	600.97236
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=15)

Value	Count	Frequency (%)
58	44	10.5%
5	44	10.5%
0	44	10.5%
56	44	10.5%
41	22	5.3%
55	22	5.3%
45	22	5.3%
8	22	5.3%
10	22	5.3%
2	22	5.3%
Other values (5)	110	26.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	44	10.5%
2	22	5.3%
5	44	10.5%
8	22	5.3%
10	22	5.3%
20	22	5.3%
25	22	5.3%
35	22	5.3%
41	22	5.3%
45	22	5.3%

Value	Count	Frequency (%)
72	22	5.3%
61	22	5.3%
58	44	10.5%
56	44	10.5%
55	22	5.3%
45	22	5.3%
41	22	5.3%
35	22	5.3%
25	22	5.3%
20	22	5.3%

score
Categorical

HIGH CORRELATION IMBALANCE

Distinct	3
Distinct (%)	0.7%
Missing	0
Missing (%)	0.0%
Memory size	24.7 KiB

0.0	374
13.71	22
12.56	22

Length

Max length	5
Median length	3
Mean length	3.2105263
Min length	3

Characters and Unicode

Total characters	1342
Distinct characters	8
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	0.0
2nd row	0.0
3rd row	0.0
4th row	0.0
5th row	0.0

Common Values

Value	Count	Frequency (%)
0.0	374	89.5%
13.71	22	5.3%
12.56	22	5.3%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
0.0	374	89.5%
13.71	22	5.3%
12.56	22	5.3%

Most occurring characters

Value	Count	Frequency (%)
0	748	55.7%
.	418	31.1%
1	66	4.9%
3	22	1.6%
7	22	1.6%
2	22	1.6%
5	22	1.6%
6	22	1.6%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	1342	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
0	748	55.7%
.	418	31.1%
1	66	4.9%
3	22	1.6%
7	22	1.6%
2	22	1.6%
5	22	1.6%
6	22	1.6%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	1342	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
0	748	55.7%
.	418	31.1%
1	66	4.9%
3	22	1.6%
7	22	1.6%
2	22	1.6%
5	22	1.6%
6	22	1.6%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	1342	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
0	748	55.7%
.	418	31.1%
1	66	4.9%
3	22	1.6%
7	22	1.6%
2	22	1.6%
5	22	1.6%
6	22	1.6%

time_spent
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	19
Distinct (%)	4.5%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	448.84211

Minimum	0
Maximum	3063
Zeros	22
Zeros (%)	5.3%
Negative	0
Negative (%)	0.0%
Memory size	3.4 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	67
median	186
Q3	411
95-th percentile	3063
Maximum	3063
Range	3063
Interquartile range (IQR)	344

Descriptive statistics

Standard deviation	731.09507
Coefficient of variation (CV)	1.6288469
Kurtosis	6.1312213
Mean	448.84211
Median Absolute Deviation (MAD)	144
Skewness	2.5940651
Sum	187616
Variance	534500
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=19)

Value	Count	Frequency (%)
1121	22	5.3%
230	22	5.3%
3063	22	5.3%
1597	22	5.3%
42	22	5.3%
102	22	5.3%
67	22	5.3%
37	22	5.3%
0	22	5.3%
77	22	5.3%
Other values (9)	198	47.4%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	22	5.3%
30	22	5.3%
37	22	5.3%
42	22	5.3%
67	22	5.3%
77	22	5.3%
102	22	5.3%
121	22	5.3%
153	22	5.3%
186	22	5.3%

Value	Count	Frequency (%)
3063	22	5.3%
1597	22	5.3%
1121	22	5.3%
458	22	5.3%
411	22	5.3%
332	22	5.3%
301	22	5.3%
230	22	5.3%
200	22	5.3%
186	22	5.3%

completed_at
Categorical

HIGH CORRELATION MISSING UNIFORM

Distinct	8
Distinct (%)	4.5%
Missing	242
Missing (%)	57.9%
Memory size	20.8 KiB

2024-03-06 03:23:01	22
2024-03-06 01:49:10	22
2024-03-06 05:14:43	22
2024-03-06 05:24:27	22
2024-04-12 02:04:56	22
Other values (3)	66

Length

Max length	19
Median length	19
Mean length	19
Min length	19

Characters and Unicode

Total characters	3344
Distinct characters	13
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	2024-03-06 03:23:01
2nd row	2024-03-06 03:23:01
3rd row	2024-03-06 03:23:01
4th row	2024-03-06 03:23:01
5th row	2024-03-06 03:23:01

Common Values

Value	Count	Frequency (%)
2024-03-06 03:23:01	22	5.3%
2024-03-06 01:49:10	22	5.3%
2024-03-06 05:14:43	22	5.3%
2024-03-06 05:24:27	22	5.3%
2024-04-12 02:04:56	22	5.3%
2024-04-12 02:26:48	22	5.3%
2024-04-12 11:04:36	22	5.3%
2024-04-12 12:08:44	22	5.3%
(Missing)	242	57.9%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
2024-03-06	88	25.0%
2024-04-12	88	25.0%
03:23:01	22	6.2%
01:49:10	22	6.2%
05:14:43	22	6.2%
05:24:27	22	6.2%
02:04:56	22	6.2%
02:26:48	22	6.2%
11:04:36	22	6.2%
12:08:44	22	6.2%

Most occurring characters

Value	Count	Frequency (%)
0	682	20.4%
2	594	17.8%
4	462	13.8%
-	352	10.5%
:	352	10.5%
1	242	7.2%
3	176	5.3%
	176	5.3%
6	154	4.6%
5	66	2.0%
Other values (3)	88	2.6%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	3344	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
0	682	20.4%
2	594	17.8%
4	462	13.8%
-	352	10.5%
:	352	10.5%
1	242	7.2%
3	176	5.3%
	176	5.3%
6	154	4.6%
5	66	2.0%
Other values (3)	88	2.6%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	3344	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
0	682	20.4%
2	594	17.8%
4	462	13.8%
-	352	10.5%
:	352	10.5%
1	242	7.2%
3	176	5.3%
	176	5.3%
6	154	4.6%
5	66	2.0%
Other values (3)	88	2.6%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	3344	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
0	682	20.4%
2	594	17.8%
4	462	13.8%
-	352	10.5%
:	352	10.5%
1	242	7.2%
3	176	5.3%
	176	5.3%
6	154	4.6%
5	66	2.0%
Other values (3)	88	2.6%

total_time
Categorical

HIGH CORRELATION MISSING UNIFORM

Distinct	18
Distinct (%)	4.5%
Missing	22
Missing (%)	5.3%
Memory size	26.0 KiB

00:17:16	22
00:06:51	22
00:05:32	22
00:07:38	22
00:05:01	22
Other values (13)	286

Length

Max length	8
Median length	8
Mean length	8
Min length	8

Characters and Unicode

Total characters	3168
Distinct characters	10
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	00:17:16
2nd row	00:17:16
3rd row	00:17:16
4th row	00:17:16
5th row	00:17:16

Common Values

Value	Count	Frequency (%)
00:17:16	22	5.3%
00:06:51	22	5.3%
00:05:32	22	5.3%
00:07:38	22	5.3%
00:05:01	22	5.3%
00:03:06	22	5.3%
00:02:33	22	5.3%
00:03:20	22	5.3%
00:02:01	22	5.3%
00:01:17	22	5.3%
Other values (8)	176	42.1%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
00:17:16	22	5.6%
00:06:51	22	5.6%
00:51:03	22	5.6%
00:07:45	22	5.6%
00:00:42	22	5.6%
00:01:42	22	5.6%
00:01:07	22	5.6%
00:00:37	22	5.6%
00:03:50	22	5.6%
00:01:17	22	5.6%
Other values (8)	176	44.4%

Most occurring characters

Value	Count	Frequency (%)
0	1386	43.8%
:	792	25.0%
1	220	6.9%
3	220	6.9%
7	132	4.2%
5	132	4.2%
2	132	4.2%
6	66	2.1%
4	66	2.1%
8	22	0.7%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	3168	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
0	1386	43.8%
:	792	25.0%
1	220	6.9%
3	220	6.9%
7	132	4.2%
5	132	4.2%
2	132	4.2%
6	66	2.1%
4	66	2.1%
8	22	0.7%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	3168	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
0	1386	43.8%
:	792	25.0%
1	220	6.9%
3	220	6.9%
7	132	4.2%
5	132	4.2%
2	132	4.2%
6	66	2.1%
4	66	2.1%
8	22	0.7%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	3168	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
0	1386	43.8%
:	792	25.0%
1	220	6.9%
3	220	6.9%
7	132	4.2%
5	132	4.2%
2	132	4.2%
6	66	2.1%
4	66	2.1%
8	22	0.7%

queues
Categorical

HIGH CORRELATION UNIFORM

Distinct	19
Distinct (%)	4.5%
Missing	0
Missing (%)	0.0%
Memory size	51.2 KiB

[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	22
[26680, 26681, 26686, 26687, 26688, 26689, 26682, 26683, 26684, 26685]	22
[45704, 45705, 45706, 45707, 45708, 45709, 45710, 45711, 45712, 45713]	22
[47692, 47857, 47860, 47863, 47866, 47871, 47874, 47877, 47880, 47883]	22
[18238, 18243, 18246, 18237, 18239, 18240, 18241, 18242, 18244, 18245, 18247, 18248]	22
Other values (14)	308

Length

Max length	84
Median length	70
Mean length	68.157895
Min length	28

Characters and Unicode

Total characters	28490
Distinct characters	14
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]
2nd row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]
3rd row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]
4th row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]
5th row	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]

Common Values

Value	Count	Frequency (%)
[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	22	5.3%
[26680, 26681, 26686, 26687, 26688, 26689, 26682, 26683, 26684, 26685]	22	5.3%
[45704, 45705, 45706, 45707, 45708, 45709, 45710, 45711, 45712, 45713]	22	5.3%
[47692, 47857, 47860, 47863, 47866, 47871, 47874, 47877, 47880, 47883]	22	5.3%
[18238, 18243, 18246, 18237, 18239, 18240, 18241, 18242, 18244, 18245, 18247, 18248]	22	5.3%
[18227, 18230, 18235, 18225]	22	5.3%
[18215, 18217, 18223, 18213, 18214, 18216, 18218, 18219, 18220]	22	5.3%
[46120, 46127, 46157, 46163, 46169, 46174, 46185, 46187, 46194, 46197]	22	5.3%
[46208, 46209, 46210, 46211, 46212, 46213, 46214, 46215, 46216, 46217]	22	5.3%
[54546, 54547, 54548, 54549, 54550, 54551, 54847, 54553, 54554, 54555]	22	5.3%
Other values (9)	198	47.4%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
45764	22	0.5%
54596	22	0.5%
54582	22	0.5%
54583	22	0.5%
54584	22	0.5%
54585	22	0.5%
54587	22	0.5%
54588	22	0.5%
54589	22	0.5%
54592	22	0.5%
Other values (175)	3850	94.6%

Most occurring characters

Value	Count	Frequency (%)
4	4026	14.1%
5	3916	13.7%
,	3652	12.8%
	3652	12.8%
8	2486	8.7%
7	2222	7.8%
1	1980	6.9%
6	1848	6.5%
2	1606	5.6%
0	968	3.4%
Other values (4)	2134	7.5%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	28490	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
4	4026	14.1%
5	3916	13.7%
,	3652	12.8%
	3652	12.8%
8	2486	8.7%
7	2222	7.8%
1	1980	6.9%
6	1848	6.5%
2	1606	5.6%
0	968	3.4%
Other values (4)	2134	7.5%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	28490	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
4	4026	14.1%
5	3916	13.7%
,	3652	12.8%
	3652	12.8%
8	2486	8.7%
7	2222	7.8%
1	1980	6.9%
6	1848	6.5%
2	1606	5.6%
0	968	3.4%
Other values (4)	2134	7.5%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	28490	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
4	4026	14.1%
5	3916	13.7%
,	3652	12.8%
	3652	12.8%
8	2486	8.7%
7	2222	7.8%
1	1980	6.9%
6	1848	6.5%
2	1606	5.6%
0	968	3.4%
Other values (4)	2134	7.5%

class_test_id
Unsupported

MISSING REJECTED UNSUPPORTED

Missing	418
Missing (%)	100.0%
Memory size	3.4 KiB

attempted_sets
Unsupported

MISSING REJECTED UNSUPPORTED

Missing	418
Missing (%)	100.0%
Memory size	3.4 KiB

type
Categorical

CONSTANT

Distinct	1
Distinct (%)	0.2%
Missing	0
Missing (%)	0.0%
Memory size	26.7 KiB

homework	418

Length

Max length	8
Median length	8
Mean length	8
Min length	8

Characters and Unicode

Total characters	3344
Distinct characters	7
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	homework
2nd row	homework
3rd row	homework
4th row	homework
5th row	homework

Common Values

Value	Count	Frequency (%)
homework	418	100.0%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
homework	418	100.0%

Most occurring characters

Value	Count	Frequency (%)
o	836	25.0%
h	418	12.5%
m	418	12.5%
e	418	12.5%
w	418	12.5%
r	418	12.5%
k	418	12.5%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	3344	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
o	836	25.0%
h	418	12.5%
m	418	12.5%
e	418	12.5%
w	418	12.5%
r	418	12.5%
k	418	12.5%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	3344	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
o	836	25.0%
h	418	12.5%
m	418	12.5%
e	418	12.5%
w	418	12.5%
r	418	12.5%
k	418	12.5%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	3344	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
o	836	25.0%
h	418	12.5%
m	418	12.5%
e	418	12.5%
w	418	12.5%
r	418	12.5%
k	418	12.5%

has_glang_contrib
Categorical

CONSTANT

Distinct	1
Distinct (%)	0.2%
Missing	0
Missing (%)	0.0%
Memory size	23.8 KiB

1	418

Length

Max length	1
Median length	1
Mean length	1
Min length	1

Characters and Unicode

Total characters	418
Distinct characters	1
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	1
2nd row	1
3rd row	1
4th row	1
5th row	1

Common Values

Value	Count	Frequency (%)
1	418	100.0%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
1	418	100.0%

Most occurring characters

Value	Count	Frequency (%)
1	418	100.0%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	418	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
1	418	100.0%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	418	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
1	418	100.0%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	418	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
1	418	100.0%

Auto

Heatmap
Table

	cefr_rate	completed_at	created_at	engine	event_id	fail	group_id	history	id	items	lesson_id	load	pass	points	queues	round	rule	score	status	time_spent	total_time	updated_at
cefr_rate	1.000	0.983	0.983	0.507	-0.216	0.986	0.500	0.984	-0.135	0.983	-0.214	-0.502	0.983	0.333	0.983	0.299	0.464	0.343	0.564	0.176	0.983	0.983
completed_at	0.983	1.000	1.000	0.983	0.952	1.000	0.983	1.000	0.976	1.000	0.952	0.109	1.000	0.386	1.000	0.988	0.983	0.985	1.000	0.310	1.000	1.000
created_at	0.983	1.000	1.000	0.979	0.904	1.000	0.981	0.999	1.000	1.000	0.863	0.244	1.000	-0.051	1.000	0.982	0.981	0.981	0.981	-0.405	1.000	1.000
engine	0.507	0.983	0.979	1.000	0.428	0.980	0.505	0.981	0.234	0.979	0.389	0.570	0.980	-0.166	0.979	0.998	0.204	0.285	0.637	0.019	0.979	0.979
event_id	-0.216	0.952	0.904	0.428	1.000	0.980	0.999	0.981	0.904	0.979	0.984	0.447	0.980	0.134	0.979	0.322	0.284	0.318	0.000	-0.219	0.979	0.979
fail	0.986	1.000	1.000	0.980	0.980	1.000	0.982	1.000	0.802	1.000	0.978	0.379	1.000	0.154	1.000	0.984	0.982	0.982	0.982	0.055	1.000	1.000
group_id	0.500	0.983	0.981	0.505	0.999	0.982	1.000	0.982	0.802	0.981	0.906	0.498	0.981	0.063	0.981	0.488	0.252	0.220	0.406	-0.374	0.981	0.981
history	0.984	1.000	0.999	0.981	0.981	1.000	0.982	1.000	0.395	0.999	0.101	-0.106	1.000	-0.793	0.999	0.983	0.982	0.982	0.982	-0.545	1.000	0.999
id	-0.135	0.976	1.000	0.234	0.904	0.802	0.802	0.395	1.000	0.983	0.863	0.244	0.984	-0.051	0.983	0.359	0.607	0.344	0.336	-0.405	0.983	0.983
items	0.983	1.000	1.000	0.979	0.979	1.000	0.981	0.999	0.983	1.000	0.970	0.388	1.000	0.184	1.000	0.982	0.981	0.981	0.981	-0.126	1.000	1.000
lesson_id	-0.214	0.952	0.863	0.389	0.984	0.978	0.906	0.101	0.863	0.970	1.000	0.425	0.984	0.193	0.983	0.502	0.368	0.209	0.500	-0.175	0.983	0.983
load	-0.502	0.109	0.244	0.570	0.447	0.379	0.498	-0.106	0.244	0.388	0.425	1.000	0.990	0.276	0.988	0.849	0.568	0.286	0.798	0.079	0.988	0.988
pass	0.983	1.000	1.000	0.980	0.980	1.000	0.981	1.000	0.984	1.000	0.984	0.990	1.000	0.376	1.000	0.983	0.981	0.981	0.981	0.012	1.000	1.000
points	0.333	0.386	-0.051	-0.166	0.134	0.154	0.063	-0.793	-0.051	0.184	0.193	0.276	0.376	1.000	0.989	0.713	0.698	0.523	0.908	0.510	0.990	0.989
queues	0.983	1.000	1.000	0.979	0.979	1.000	0.981	0.999	0.983	1.000	0.983	0.988	1.000	0.989	1.000	0.982	0.981	0.981	0.981	-0.126	1.000	1.000
round	0.299	0.988	0.982	0.998	0.322	0.984	0.488	0.983	0.359	0.982	0.502	0.849	0.983	0.713	0.982	1.000	0.265	0.189	0.528	0.102	0.982	0.982
rule	0.464	0.983	0.981	0.204	0.284	0.982	0.252	0.982	0.607	0.981	0.368	0.568	0.981	0.698	0.981	0.265	1.000	0.466	0.457	-0.254	0.981	0.981
score	0.343	0.985	0.981	0.285	0.318	0.982	0.220	0.982	0.344	0.981	0.209	0.286	0.981	0.523	0.981	0.189	0.466	1.000	0.277	0.530	0.981	0.981
status	0.564	1.000	0.981	0.637	0.000	0.982	0.406	0.982	0.336	0.981	0.500	0.798	0.981	0.908	0.981	0.528	0.457	0.277	1.000	0.412	0.981	0.981
time_spent	0.176	0.310	-0.405	0.019	-0.219	0.055	-0.374	-0.545	-0.405	-0.126	-0.175	0.079	0.012	0.510	-0.126	0.102	-0.254	0.530	0.412	1.000	0.983	0.983
total_time	0.983	1.000	1.000	0.979	0.979	1.000	0.981	1.000	0.983	1.000	0.983	0.988	1.000	0.990	1.000	0.982	0.981	0.981	0.981	0.983	1.000	1.000
updated_at	0.983	1.000	1.000	0.979	0.979	1.000	0.981	0.999	0.983	1.000	0.983	0.988	1.000	0.989	1.000	0.982	0.981	0.981	0.981	0.983	1.000	1.000

A simple visualization of nullity by column.

Nullity matrix is a data-dense display which lets you quickly visually pick out patterns in data completion.

The correlation heatmap measures nullity correlation: how strongly the presence or absence of one variable affects the presence of another.

First rows
Last rows

	id	user_id	lesson_id	group_id	event_id	engine	items	load	pass	fail	round	status	history	created_at	updated_at	rule	cefr_rate	points	time_spent	completed_at	total_time	queues	class_test_id	attempted_sets	type	has_glang_contrib
0	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1
1	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1
2	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1
3	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1
4	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1
5	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1
6	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1
7	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1
8	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1
9	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	NaN	NaN	homework	1

	id	user_id	lesson_id	group_id	event_id	engine	items	load	pass	fail	round	status	history	created_at	updated_at	rule	cefr_rate	points	time_spent	completed_at	total_time	queues	class_test_id	attempted_sets	type	has_glang_contrib
408	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1
409	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1
410	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1
411	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1
412	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1
413	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1
414	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1
415	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1
416	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1
417	25073	2534	2119	1760	279718	carryForwardEngine	[54781, 54783, 54784, 54787, 54788, 54789, 54790, 54782, 54785, 54786]	7	[54781, 54783, 54784, 54787, 54788, 54789, 54790]	NaN	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [54782, 54785, 54786], "passed": [54781, 54783, 54784, 54787, 54788, 54789, 54790], "points": 35, "attempted": [54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790], "cefr_rate": 16.666666666666668, "created_at": "2024-04-12T12:15:58.415290Z", "lang_level": 1, "time_spent": "30"}}, "cefr_rate": {"1712923853": 25, "1712923854": 12.5, "1712923855": 18.75, "1712923856": 18.75, "1712923857": 14.583333335, "1712923858": 12.5, "1712923859": 16.666666666666668, "1712923860": 16.666666666666668, "1712923861": 16.666666666666668}, "first_engine": "linearStandAloneEngine", "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-04-12 12:10:37	2024-04-12 12:15:58	{"step": "same", "level": 2}	16.67	35.0	30.0	NaN	00:00:30	[54781, 54782, 54783, 54784, 54785, 54786, 54787, 54788, 54789, 54790]	NaN	NaN	homework	1

Most frequently occurring

	id	user_id	lesson_id	group_id	event_id	engine	items	load	pass	fail	round	status	history	created_at	updated_at	rule	cefr_rate	points	time_spent	completed_at	total_time	queues	type	has_glang_contrib	# duplicates
0	23692	2534	1855	1717	20789	linearStandAloneEngine	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	9	[45767, 45766, 45818, 45819, 45820, 45821, 45822, 45823]	[45764, 45765]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [45764, 45765], "passed": [45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "points": 58, "attempted": [45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823], "cefr_rate": 21.42857143, "created_at": "2024-03-06T03:23:01.358506Z", "lang_level": 1, "time_spent": "1121"}}, "cefr_rate": {"1709690758": 6.25, "1709690759": 15.00000001, "1709690760": 16.66666667, "1709690761": 17.85714286, "1709690762": 21.42857143, "1709690763": 21.42857143}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T03:23:01.358549Z", "streak_badge_given_at_index": 6}	2024-03-05 07:35:04	2024-03-06 03:23:01	{"step": "same", "level": 2, "has_streak": true}	21.43	58.0	1121.0	2024-03-06 03:23:01	00:17:16	[45764, 45765, 45766, 45767, 45818, 45819, 45820, 45821, 45822, 45823]	homework	1	22
1	23727	2534	1187	1717	20787	linearStandAloneEngine	[26680, 26681, 26686, 26687, 26688, 26689, 26682, 26683, 26684, 26685]	9	[26680, 26681, 26686, 26683, 26684, 26685]	[26687, 26688, 26689, 26682]	1	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "linearStandAloneEngine", "failed": [26687, 26688, 26689, 26682], "passed": [26680, 26681, 26686, 26683, 26684, 26685], "points": 41, "attempted": [26680, 26681, 26686, 26687, 26688, 26689, 26682, 26683, 26684, 26685], "cefr_rate": 16.666666666666668, "created_at": "2024-03-06T01:49:10.324478Z", "lang_level": 1, "time_spent": "385"}}, "cefr_rate": {"1709688394": 25, "1709688395": 25, "1709688396": 25, "1709688397": 18.75, "1709688398": 16.666666665, "1709688399": 15.625, "1709688400": 15.625, "1709688401": 14.583333333333334, "1709688402": 15.972222223333333}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1187, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T01:49:10.324516Z", "perseverance_badge_given_at_index": 6}	2024-03-05 12:53:59	2024-03-06 01:49:10	{"step": "same", "level": 2}	16.67	41.0	411.0	2024-03-06 01:49:10	00:06:51	[26680, 26681, 26686, 26687, 26688, 26689, 26682, 26683, 26684, 26685]	homework	1	22
2	23733	2534	1556	1717	20788	carryForwardEngine	[45704, 45705, 45706, 45707]	3	[45708, 45709, 45710, 45711, 45712, 45713, 45706, 45707]	[45704, 45705]	3	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [45704, 45705, 45706, 45707], "passed": [45708, 45709, 45710, 45711, 45712, 45713], "points": 35, "attempted": [45704, 45705, 45706, 45707, 45708, 45709, 45710, 45711, 45712, 45713], "cefr_rate": 18.75, "created_at": "2024-03-06T04:21:19.940552Z", "lang_level": 1, "time_spent": "250"}, "2": {"score": 0, "engine": "carryForwardEngine", "failed": [45704, 45705, 45706, 45707], "passed": [], "points": 36, "attempted": [45704, 45705, 45706, 45707], "cefr_rate": 18.75, "created_at": "2024-03-06T04:24:16.034067Z", "lang_level": 1, "time_spent": "300"}, "3": {"score": 0, "engine": "carryForwardEngine", "failed": [45704, 45705], "passed": [45706, 45707], "points": 58, "attempted": [45704, 45705, 45706, 45707], "cefr_rate": 25, "created_at": "2024-03-06T05:14:42.956894Z", "lang_level": 1, "time_spent": "328"}}, "cefr_rate": {"1709689884": 8.33333333, "1709689885": 12.5, "1709689886": 18.75, "1709689887": 18.75, "1709689888": 18.75, "1709689889": 18.75, "1709689890": 18.75, "1709689891": 18.75, "1709689892": 18.75, "1709689893": 18.75, "1709689894": 21.875}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1556, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T05:14:42.956942Z", "streak_badge_given_at_index": 8, "perseverance_badge_given_at_index": 3}	2024-03-06 01:37:50	2024-03-06 05:14:43	{"step": "same", "level": 2}	25.00	58.0	332.0	2024-03-06 05:14:43	00:05:32	[45704, 45705, 45706, 45707, 45708, 45709, 45710, 45711, 45712, 45713]	homework	1	22
3	23735	2534	1856	1717	20790	carryForwardEngine	[47871, 47877, 47880]	2	[47692, 47857, 47860, 47863, 47866, 47883, 47874, 47871]	[47877, 47880]	4	passed	{"badge": {"first_lesson_achiever": true}, "bonus": {"": 100}, "round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [47871, 47874, 47877, 47880], "passed": [47692, 47857, 47860, 47863, 47866, 47883], "points": 33, "attempted": [47692, 47857, 47860, 47863, 47866, 47871, 47874, 47877, 47880, 47883], "cefr_rate": 13.095238095, "created_at": "2024-03-06T04:12:51.624980Z", "lang_level": 1, "time_spent": "379"}, "2": {"score": 0, "engine": "carryForwardEngine", "failed": [47871, 47874, 47877, 47880], "passed": [], "points": 34, "attempted": [47871, 47874, 47877, 47880], "cefr_rate": 13.095238095, "created_at": "2024-03-06T04:14:17.787087Z", "lang_level": 1, "time_spent": "386"}, "3": {"score": 0, "engine": "carryForwardEngine", "failed": [47871, 47877, 47880], "passed": [47874], "points": 40, "attempted": [47871, 47874, 47877, 47880], "cefr_rate": 14.880952385, "created_at": "2024-03-06T05:23:03.040310Z", "lang_level": 1, "time_spent": "453"}, "4": {"score": 0, "engine": "carryForwardEngine", "failed": [47877, 47880], "passed": [47871], "points": 55, "attempted": [47871, 47877, 47880], "cefr_rate": 16.666666665, "created_at": "2024-03-06T05:24:27.318589Z", "lang_level": 1, "time_spent": "456"}}, "cefr_rate": {"1709691177": 25, "1709691178": 25, "1709691179": 25, "1709691180": 25, "1709691181": 25, "1709691182": 20.83333333, "1709691183": 17.85714286, "1709691184": 17.85714286, "1709691185": 17.85714286, "1709691186": 13.095238095, "1709691187": 13.095238095, "1709691188": 13.095238095, "1709691189": 13.095238095, "1709691190": 14.880952385, "1709691191": 14.880952385, "1709691192": 16.666666665, "1709691193": 16.666666665}, "skills_count": 0, "weakest_skill": "", "next_lesson_id": 1856, "is_weakest_skill_on": true, "lesson_completed_at": "2024-03-06T05:24:27.318622Z", "streak_badge_given_at_index": 4, "perseverance_badge_given_at_index": 3}	2024-03-06 02:09:40	2024-03-06 05:24:27	{"step": "same", "level": 2}	16.67	55.0	458.0	2024-03-06 05:24:27	00:07:38	[47692, 47857, 47860, 47863, 47866, 47871, 47874, 47877, 47880, 47883]	homework	1	22
4	23754	2534	921	1700	19951	carryForwardEngine	[18243, 18237, 18240, 18241, 18244, 18245]	5	[18246, 18239, 18242, 18248, 18238, 18247, 18243, 18240]	[18237, 18241, 18244]	4	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [18238, 18243, 18246], "passed": [], "points": 0, "attempted": [18238, 18243, 18246], "cefr_rate": 0, "created_at": "2024-03-06T05:31:34.736440Z", "lang_level": 1, "time_spent": "244"}, "2": {"score": 0, "engine": "carryForwardEngine", "failed": [18238, 18243, 18237, 18240, 18241, 18244, 18245, 18247], "passed": [18246, 18239, 18242, 18248], "points": 22, "attempted": [18238, 18243, 18246, 18237, 18239, 18240, 18241, 18242, 18244, 18245, 18247, 18248], "cefr_rate": 16.666666665, "created_at": "2024-03-06T05:37:32.250476Z", "lang_level": 1, "time_spent": "286"}, "3": {"score": 0, "engine": "carryForwardEngine", "failed": [18243, 18237, 18240, 18241, 18244, 18245], "passed": [18238, 18247], "points": 35, "attempted": [18238, 18243, 18237, 18240, 18241, 18244, 18245, 18247], "cefr_rate": 16.666666666666668, "created_at": "2024-03-06T13:01:24.927075Z", "lang_level": 1, "time_spent": "294"}}, "cefr_rate": {"1709703166": 25, "1709703167": 25, "1709703168": 25, "1709703169": 25, "1709703170": 25, "1709703171": 25, "1709703172": 25, "1709703173": 25, "1709703174": 25, "1709703175": 20.833333335, "1709703176": 20.833333335, "1709703177": 20.833333335, "1709703178": 20.833333335, "1709703179": 20.833333335, "1709703180": 20.833333335, "1709703181": 20.833333335, "1709703182": 19.444444446666665, "1709703183": 19.444444446666665, "1709703184": 22.222222223333333, "1709703185": 22.222222223333333, "1709703186": 22.222222223333333}, "skills_count": {"reading": 1, "writing": 1, "listening": 1}, "weakest_skill": "", "is_weakest_skill_on": true, "perseverance_badge_given_at_index": 4}	2024-03-06 05:26:45	2024-03-06 13:03:37	{"step": "same", "level": 2}	22.22	45.0	301.0	NaN	00:05:01	[18238, 18243, 18246, 18237, 18239, 18240, 18241, 18242, 18244, 18245, 18247, 18248]	homework	1	22
5	23755	2534	943	1700	19952	carryForwardEngine	[18227, 18235, 18225]	1	[18230]	[18227]	2	assessment	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [18227, 18235], "passed": [18230], "points": 5, "attempted": [18227, 18230, 18235], "cefr_rate": 25, "created_at": "2024-03-06T05:43:24.441419Z", "lang_level": 1, "time_spent": "185"}}, "cefr_rate": {"1709703758": 25, "1709703759": 25}, "skills_count": {"reading": 1, "listening": 2}, "weakest_skill": "listening", "is_weakest_skill_on": true}	2024-03-06 05:40:04	2024-03-06 05:43:56	{"step": "same", "level": 2}	25.00	5.0	186.0	NaN	00:03:06	[18227, 18230, 18235, 18225]	homework	1	22
6	23756	2534	944	1700	19953	carryForwardEngine	[18215, 18223, 18213, 18214, 18216, 18218, 18219, 18220]	0	[18217]	NaN	2	in_progress	{"round": {"1": {"score": 0, "engine": "carryForwardEngine", "failed": [18215, 18223], "passed": [18217], "points": 5, "attempted": [18215, 18217, 18223], "cefr_rate": 25, "created_at": "2024-03-06T05:54:55.204051Z", "lang_level": 1, "time_spent": "153"}}, "cefr_rate": {"1709704027": 25}, "skills_count": {"writing": 1, "listening": 2}, "weakest_skill": "listening", "is_weakest_skill_on": true}	2024-03-06 05:45:20	2024-03-06 05:54:55	{"step": "same", "level": 2}	25.00	5.0	153.0	NaN	00:02:33	[18215, 18217, 18223, 18213, 18214, 18216, 18218, 18219, 18220]	homework	1	22
7	23759	2534	1615	1717	21428	linearStandAloneEngine	[46120, 46127, 46157, 46163, 46169, 46174, 46185, 46187, 46194, 46197]	9	[46157]	[46120, 46127, 46163, 46169, 46174, 46185, 46187, 46194]	1	in_progress	{"cefr_rate": {"1709725577": 50, "1709725578": 25, "1709725579": 16.66666667, "1709725580": 12.5, "1709725581": 12.5, "1709725582": 12.5, "1709725583": 12.5}, "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true, "perseverance_badge_given_at_index": 6}	2024-03-06 11:39:06	2024-03-06 12:49:41	{"step": "same", "level": 2, "has_perseverance": true}	12.50	8.0	200.0	NaN	00:03:20	[46120, 46127, 46157, 46163, 46169, 46174, 46185, 46187, 46194, 46197]	homework	1	22
8	23892	2534	1616	1717	21427	linearStandAloneEngine	[46208, 46209, 46210, 46211, 46212, 46213, 46214, 46215, 46216, 46217]	2	[46208, 46209]	[46210]	1	in_progress	{"cefr_rate": {"1710242548": 50, "1710242549": 50}, "skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true}	2024-03-12 11:01:20	2024-03-12 11:27:33	{"step": "same", "level": 2}	50.00	10.0	121.0	NaN	00:02:01	[46208, 46209, 46210, 46211, 46212, 46213, 46214, 46215, 46216, 46217]	homework	1	22
9	24084	2534	2112	1760	279712	linearStandAloneEngine	[54546, 54547, 54548, 54549, 54550, 54551, 54847, 54553, 54554, 54555]	8	NaN	[54546, 54550, 54551, 54847, 54553]	1	in_progress	{"skills_count": 0, "weakest_skill": "", "is_weakest_skill_on": true, "perseverance_badge_given_at_index": 6}	2024-03-23 02:13:16	2024-04-12 07:29:56	{"step": "same", "level": 2, "has_perseverance": true}	0.00	2.0	77.0	NaN	00:01:17	[54546, 54547, 54548, 54549, 54550, 54551, 54847, 54553, 54554, 54555]	homework	1	22

Overview

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